Andrian Suner, and Linda Trisna. “Effectiveness of Eight Weeks Pencil Push Up Therapy for Patients With Convergence Insufficieny in Mohammad Hoesin Hospital Palembang”. Sriwijaya Journal of Ophthalmology 1, no. 1 (June 18, 2018): 18-26. Accessed March 29, 2024. https://sriwijayaopthalmology.com/index.php/sjo/article/view/42.